<template>
  <div class="container">
    <div class="app-container">
      <!-- 左侧 -->
      <div class="left">
        <el-input
          v-model.trim="queryParams.keyword"
          style="margin-bottom:10px"
          type="text"
          prefix-icon="el-icon-search"
          size="small"
          placeholder="输入员工姓名全员搜索"
          @input="onSearch"
        />
        <!-- 树形组件 -->
        <el-tree
          ref="elTreeRef"
          default-expand-all
          :data="depts"
          :props="defaultProps"
          :expand-on-click-node="false"
          node-key="id"
          highlight-current
          @current-change="selectNode"
        />
      </div>
      <!-- 右侧 -->
      <div class="right">
        <el-row class="opeate-tools" type="flex" justify="space-between">
          <el-button size="mini" @click="sendMultiMessage">群发通知</el-button>
          <el-row>
            <el-button size="mini" type="primary" @click="$router.push('/employee/detail')">添加员工</el-button>
            <el-button size="mini" @click="showExcelDialog=true">excel导入</el-button>
            <el-button size="mini" @click="exportEmployee">excel导出</el-button>
          </el-row>
        </el-row>
        <!-- 表格组件 -->
        <el-table ref="employeeTable" row-key="id" :data="employeeList" @select="selectChange" @select-all="selectChange">
          <!-- 放置列 -->
          <el-table-column type="selection" />
          <el-table-column width="120" prop="staffPhoto" align="center" label="头像">
            <template #default="{ row }">
              <el-avatar v-if="row.staffPhoto" :src="row.staffPhoto" :size="30" />
              <span v-else class="username">{{ row.username?.charAt(0) }}</span>
            </template>
          </el-table-column>
          <el-table-column align="center" label="姓名" width="100" prop="username" />
          <el-table-column align="center" label="手机号" width="120" prop="mobile" sortable />
          <el-table-column align="center" label="工号" width="120" prop="workNumber" sortable />
          <el-table-column align="center" label="聘用形式" width="100" prop="formOfEmployment">
            <template v-slot="{ row }">
              <span v-if="row.formOfEmployment === 1">正式</span>
              <span v-else-if="row.formOfEmployment === 2">非正式</span>
              <span v-else>无</span>
            </template>
          </el-table-column>
          <el-table-column align="center" label="部门" width="100" prop="departmentName" />
          <el-table-column align="center" label="入职时间" width="100" prop="timeOfEntry" sortable />
          <el-table-column align="center" label="操作" width="150">
            <template #default="{ row }">
              <el-button size="mini" type="text" @click="$router.push(`/employee/detail/${row.id}'`)">查看</el-button>
              <el-button size="mini" type="text" @click="btnRole(row.id)">角色</el-button>
              <!-- <el-button size="mini" type="text" @click="delEmployee(row.id)">删除</el-button> -->
              <el-popconfirm title="这是一段内容确定删除吗？" @onConfirm="delEmployee(row.id)">
                <el-button slot="reference" size="mini" type="text" style="margin-left:10px">删除</el-button>
              </el-popconfirm>
            </template>
          </el-table-column>
        </el-table>
        <!-- 分页 -->
        <el-row type="flex" style="height: 60px;" align="middle" justify="center">
          <el-pagination
            :page-size="queryParams.pagesize"
            :current-page="queryParams.page"
            :total="total"
            layout="total,prev, pager, next"
            @current-change="changePage"
          />
        </el-row>
      </div>
      <!-- 上传文件弹层 -->
      <ImportExcel :show-excel-dialog.sync="showExcelDialog" @uploadSuccess="getEmployeeList" />

      <!-- 角色弹层 -->
      <el-dialog :visible.sync="showRoleDialog" title="角色" width="500px">
        <!-- 内容 -->
        <el-checkbox-group v-model="roleIds">
          <el-checkbox v-for="item in roleList" :key="item.id" :label="item.id">{{ item.name }}</el-checkbox>
        </el-checkbox-group>
        <div style="text-align:center;margin-top: 10px;">
          <el-button type="primary" size="mini" @click="btnOk">确定</el-button>
          <el-button type="danger" size="mini" @click="btnCancel">取消</el-button>
        </div>
      </el-dialog>

      <el-dialog title="群发通知" :visible.sync="showMultiMessageDialog">
        <div class="select_users">
          <el-tag
            v-for="item in all_users"
            :key="item.id"
            closable
            @close="delSendUser(item)"
          >@{{ item.username }}</el-tag>
        </div>
        <el-form label-width="80px">
          <el-form-item label="消息等级">
            <el-select v-model="messageForm.type" size="mini">
              <el-option :value="1" label="通知消息" />
              <el-option :value="2" label="提示消息" />
              <el-option :value="3" label="重要消息" />
              <el-option :value="4" label="紧急消息" />

            </el-select>
          </el-form-item>
          <el-form-item label="通知内容">
            <el-input v-model="messageForm.content" type="textarea" :rows="4" place-holder="通知内容的长度在5-100个字符" />
          </el-form-item>
        </el-form>

        <!-- 群发通知 -->
        <template #footer>
          <el-row type="flex" justify="end">
            <el-button size="mini" @click="btnCancelSend">取消</el-button>
            <el-button size="mini" type="primary" @click="btnSendMultiMessage">发送通知</el-button>
          </el-row>
        </template>

      </el-dialog>
    </div>
  </div>
</template>
<script>
import { getDepartmentApi } from '@/api/department'
import { delEmployeeApi, exportEmployeeApi, getEmployeeDetailApi, getEmployeeListApi, sendMultiMessageApi } from '@/api/employee'
import { transListToTreeData } from '@/utils'
import FileSaver from 'file-saver'
import ImportExcel from './components/import-excel.vue'
import { assignRoleApi, getEnableRoleListApi } from '@/api/role'

export default {
  name: 'Employee',
  components: {
    ImportExcel
  },
  data() {
    return {
      depts: [
      ],
      defaultProps: {
        label: 'name',
        children: 'children'
      },
      // 查询参数对象
      queryParams: {
        departmentId: null,
        page: 1, // 第几页
        pagesize: 10, // 每页多少条
        keyword: '' // 模糊搜索
      },
      total: 0,
      employeeList: [],
      showExcelDialog: false, // 控制上传弹层的显示/隐藏
      // 角色弹层相关----------------------------------------------
      showRoleDialog: false, // 用来控制角色弹层的显示
      roleList: [], // 接收角色列表
      roleIds: [], // 用来双向绑定数据的
      currentUserId: 0,
      selectUsers: {}, // 存储每一页的用户 如  {1: [], 2: [], 3: [] ...}
      showMultiMessageDialog: false,
      messageForm: {
        type: 1, // 1 通知消息 2 提示消息 3  重要消息 4 紧急消息
        content: ''
      }
    }
  },
  computed: {
    all_users() {
      return [...Object.values(this.selectUsers).flat()]
    }
  },
  created() {
    this.getDepartment()
  },
  methods: {
    async getDepartment() {
      const res = await getDepartmentApi()
      this.depts = transListToTreeData(res, 0)
      // 设置当前选中的节点的key值
      this.queryParams.departmentId = this.depts[0].id

      this.$nextTick(() => {
        this.$refs.elTreeRef.setCurrentKey(this.queryParams.departmentId)
      })
      // 获取员工数据列表
      this.getEmployeeList()
    },
    selectNode(node) {
      this.queryParams.departmentId = node.id
      this.queryParams.page = 1 // 设置第一页
      // 获取员工数据列表
      this.getEmployeeList()
    },
    async getEmployeeList() {
      const { rows, total } = await getEmployeeListApi(this.queryParams)
      this.employeeList = rows
      this.total = total
    },
    // 切换页码
    async changePage(newPage) {
      this.queryParams.page = newPage // 赋值新页码
      await this.getEmployeeList() // 查询数据
      // 切换页码处理选中问题
      this.$refs.employeeTable.store.states.selection = this.selectUsers[this.queryParams.page] || []
      this.$refs.employeeTable.store.updateSelectionByRowKey() // 重新计算selection
      this.$refs.employeeTable.store.updateAllSelected() // 计算全选
    },
    // 搜索
    onSearch() {
      // 单位时间内只执行最后一次
      // this的实例上赋值了一个timer的属性
      clearTimeout(this.timer) // 清理上一次的定时器
      this.timer = setTimeout(() => {
        this.queryParams.page = 1
        this.getEmployeeList()
      }, 400)
    },
    // 导出
    async exportEmployee() {
      const res = await exportEmployeeApi()
      FileSaver.saveAs(res, '员工信息表.xlsx') // 下载文件
    },
    // 删除
    async delEmployee(id) {
      await delEmployeeApi(id)
      this.$message.success('删除成功')
      // 获取员工数据列表
      this.getEmployeeList()
    },
    // 点击角色按钮弹出层
    async btnRole(id) {
      this.currentUserId = id
      this.roleList = await getEnableRoleListApi()
      const { roleIds } = await getEmployeeDetailApi(id)
      this.roleIds = roleIds
      this.showRoleDialog = true
    },
    async btnOk() {
      await assignRoleApi({
        id: this.currentUserId,
        roleIds: this.roleIds
      })
      this.$message.success('分配用户角色成功')
      this.showRoleDialog = false
    },
    btnCancel() {
      this.roleIds = []
      this.showRoleDialog = false
    },
    // 选择发生变化
    selectChange(selectRows) {
      // 去重
      this.selectUsers = {
        ...this.selectUsers,
        [this.queryParams.page]: selectRows
      }
    },
    // 群发消息
    sendMultiMessage() {
      if (!this.all_users.length) {
        return this.$message.warning('请先选择要群发的员工')
      }
      // 群发消息
      this.showMultiMessageDialog = true
    },
    delSendUser(item) {
      // item哪一页的？？？？
      // 删除selectUser中的数据
      // 页面上取消勾选
      Object.keys(this.selectUsers).forEach(key => {
        const index = this.selectUsers[key].findIndex(row => row.id === item.id)
        if (index > -1) {
          this.selectUsers[key].splice(index, 1) // 删除存储的数据
          this.$refs.employeeTable.toggleRowSelection(item, false) // 页面上取消勾选
        }
      }) // [1,2,3,4,5...]
    },
    // 发送消息
    async btnSendMultiMessage() {
      if (!this.all_users.length) {
        return this.$message.warning('发送的用户不能为空')
      }
      if (!this.messageForm.content) {
        return this.$message.warning('消息内容不能为空')
      }
      await sendMultiMessageApi({
        userIds: this.all_users.map(item => item.id), // [{ id: 11 }]  //[1,2,3,4,4]
        ...this.messageForm // type content
      })
      this.$message.success('群发消息成功')
      this.messageForm = {
        type: 1,
        content: ''
      }
      this.showMultiMessageDialog = false
    },
    btnCancelSend() {
      this.showMultiMessageDialog = false
    }
  }
}
</script>

<style lang="scss" scoped>
.app-container {
background: #fff;
display: flex;
.left {
  width: 280px;
  padding: 20px;
  border-right: 1px solid #eaeef4;
}
.right {
  flex: 1;
  padding: 20px;
  .opeate-tools {
    margin:10px ;
  }
  .username {
    height: 30px;
    width: 30px;
    line-height: 30px;
    text-align: center;
    border-radius: 50%;
    color: #fff;
    background: #04C9BE;
    font-size: 12px;
    display:inline-block;
  }
}
.select_users {
  display: flex;
  flex-wrap: wrap;
  padding: 10px 10px;
  border: 1px solid #ccc;
  border-radius: 10px;
  span {
    margin: 6px 5px;
  }
}
}

</style>
